The same reason Ford or any other manufacturer stops selling any product - cost, consolidating product lines or wanting something new. The guardian upright was replaced by the Lux heavy duty upright, which is similar but not the same configuration and before it was discontinued it was still selling well at my franchise.
How much would one cost??
If the is residential guardian upright was so popular still then ashy did Aerus discontinue it.
The same reason Ford or any other manufacturer stops selling any product - cost, consolidating product lines or wanting something new. The guardian upright was replaced by the Lux heavy duty upright, which is similar but not the same configuration and before it was discontinued it was still selling well at my franchise.